Which of the following scatterplots best shows an outlier in ONLY the x-direction? Test Scores 100 90 Number of Hours of Sleep vs. Test Results 80 70 60 50 40 30 20 10 1 2 3 4 5 6 7 8 9 Number of Hours of Sleep 10 10 Test Scores 100 90 80 70 60 50 40 30 Number of Hours of Sleep vs. Test Results 20 10 1 2 3 4 5 6 7 8 9 10 Number of Hours of Sleep Test Scores 100 90 80 70 60 50 40 30 20 Number of Hours of Sleep vs. Test Results 10 1 2 3 456 7 8 9 10 Number of Hours of Sleep Test Scores 100 90 80 70 60 50 40 30 Number of Hours of Sleep vs. Test Results 20 10 0 1 2 3 4 5 6 7 8 9 10 Number of Hours of Sleep